Lampoassa T 10-15 User manual

USER MANUAL
LÄMPÖÄSSÄ
T/P 10 – 31
LÄMPÖÄSSÄ 5/2013
Ground Source Heat Pumps Since 1983
As Long As the Sun Exists
Let Mother Earth Heat Your Home

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Ground Source Heat Pumps Since 1983

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Ground Source Heat Pumps Since 1983
Content
1. GENERAL INFORMATION 4
1.1. Safety precautions 4
1.2. Transportation 4
1.3. Installation area 4
1.4. Removing the packaging 5
1.5. Structure and operating principles 5
1.5.1. Structure 5
1.5.2. Operation 5
2. INSTALLATION 6
2.1. Before installation 6
2.2. Pipe-laying 6
2.3. Connecting the collector pipe 7
2.4. Filling and de-aeration of the ground loop 7
2.5. Boiler connection 9
2.6. Heating connection 10
2.7. Domestic water connection and circulation of water 10
2.8. HEPAC check list 10
2.9. Electrical installation 11
2.9.1. Main switch 11
2.9.2. Sensors 11
2.9.3. Actuators 12
2.10. Electricity check list 12
2.11. Operating switches 12
2.12. Before startup 12
2.13. Startup 12
3. USER INFORMATION 14
3.1. Lämpöässä settings 14
3.2. Care and maintenance 14
3.3. Troubleshooting 14
4. TECHNICAL SPECIFICATIONS 16
4.1. Chart 16
4.2. Space requirements 16
5. WARRANTY 17
6. APPENDIX 17

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Ground Source Heat Pumps Since 1983
1. GENERAL INFORMATION
We thank you for your condence in our products and congratulate you on making an excellent choice! You have
selected a long-lasting and environmentally friendly Lämpöässä geothermal heat system. We hope that you will enjoy
Lämpöässä’s heating system which will give you peace of mind for decades. It is important to read the user and
maintenance instructions carefully. Please retain this manual for future use and reference should problems occur.
1.1. Safety precautions
To ensure the Lämpöässä geothermal heat system operates in a trouble-free manner and in order to obtain the best
operating efciency, the system must be transported and installed in accordance with the instructions provided by the
manufacturer. After installation is complete, the check list provided must be reviewed in order to minimise any instal-
lation errors. The manufacturer shall not be responsible for any breakages of equipment which is not installed correctly
or any costs incurred as a result of this.
The pipe and electrical installations for the Lämpöässä geothermal heating system can only be installed by qualied
persons. If problems occur during installation, we recommend that you contact your retailer or our maintenance
department. The telephone number for the maintenance department can be found in the documents delivered with the
Lämpöässä heat pump. Electrical connections for the installation of the Lämpöässä may only be set up by qualied
electricians.
In Lämpöässä T and P models – to prevent a compressor breakdown – the compressor and water in the storage tank
must be preheated for 6 hours before the heat pump is started for the rst time. Press the motor protective switch down
and switch on the power. This stops the compressor starting and enables the electrical immersion to heat up the
compressor and water in the storage tank. The compressor can be started after 6 hours of preheating.
The warranty of the
Lämpöässä T
compressor is not
valid if preheating
is not carried out.
1.2. Transportation
The Lämpöässä heat pump must always be transported in a vertical position. If tilting the system is unavoidable, for
example to pass through a doorway, it may only be tilted to the left side or back as seen from the front of the heat
pump. The unit may be moved from beneath using a forklift, for example. Do not go underneath the equipment while
it is being lifted!
A transportation platform is fastened on both sides of the heat pump using screws. When the screws on the platform
are removed, the adjustable feet used for nal installation can be found inside.
1.3. Installation area
We recommend that the Lämpöässä geothermal heat pump be installed in a warm space which has a oor drain. During
installation and when lling of the ground loop, some geothermal uid mixture may be splashed on the oor. Glycol/water mixture
can be used as well. The chosen area does not have to be reproof. The oor must be able to withstand the weight of the
heat pump and a full water tank. The oor must also be sufciently even, because the heat pump must be as level as
possible. Final adjustments can be made using the adjustable feet underneath the equipment.

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Ground Source Heat Pumps Since 1983
1.4. Removing the packaging
Remove the plastic wrapping and corner padding from around the product. Check that the heat pump has not suffered any
damage during transportation. If the heat pump is found to be damaged, the company which delivered the product must be
immediately notied. Also check the contents of the delivery immediately.
1.5. Structure and operating principles
1.5.1. Structure
The Lämpöässä geothermal heat system consists of a network of heat collection pipes, a geothermal uid mixture circulating
within the network and a geothermal heat pump unit. The geothermal heat pump unit consists of a compressor, evaporator,
condenser and a refrigerant circulating inside the pump. The heat collection uid in the ground loop and the refrigerant
do not mix at any stage of the process.
1.5.2. Operation
The Lämpöässä heat pump transfers heat from the ground,
water system or a bore well. Of the total thermal energy requi-
red for heating, Lämpöässä collects more than 70% from
natural sources. Less than 30% of the electrical energy is
required for the collection of thermal energy. This energy is
used to run the various components in the system.
The heat collection pipe is a plastic pipe (PEM 40/10) with a water and ethyl alcohol or glycol-water mixture circulating
inside. It is placed 1-1.2 metres deep in the ground or at least 3 metres deep in water. The bore well is normally 100-
200 metres deep with a diameter of 140-165 mm. The heat pump is used in the transfer of heat from the water and
ethyl alcohol mixture. Approximately three degrees of heat is transferred into the refrigerant circulating inside the heat
pump, after which the geothermal uid returns to the ground loop to heat up again.
Heat is transferred from one uid to another in the evaporator, in which the refrigerant evaporates thanks to the low
suction head of the compressor. This binds the heat from the geothermal uid with the help of a disk thermal exchan-
ger. The pressure of the gaseous refrigerant is increased using a compressor which makes the temperature of the refri-
gerant rise. The heat contained in the gas is transported in the condenser to heat the water in the water tank and thus
produce hot water for use. As the heat is transferred, the gas turns into uid once again and is carried back through a
dehumidication lter and an expansion valve to circulate.
The Lämpöässä geothermal heat pump is suitable for producing hot water and heating single-family households, ter-
raced houses, ofces, hotels and industrial halls. Heat distribution can be implemented using oor heating with circu-
lating water, water-lled radiators or the circulation of hot air. Floor heating has the best operating efciency. In order
to ensure trouble-free operation, all Lämpöässä heat pumps have been test-run, set up and tested by the
manufacturer.

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Ground Source Heat Pumps Since 1983
2. INSTALLATION
2.1. Before installation
Pipe assemblies for the installation of the Lämpöässä system may only be installed by qualied persons. The unit must
be installed in accordance with the instructions provided and a check list must be reviewed after installation in order
to minimise errors. The manufacturer shall not be responsible for any breakages of equipment which is not installed
correctly or any costs incurred as a result of this.
Check that
• all the required hoses and sensors are included in the delivery
• the heat pump has been correctly tted
• the assemblies on top of the heat pump are intact
• the fuse size is correct for the main fuse and the heat pump (see technical specications)
• collector pipes and the feed pipes have been installed correctly
2.2. Pipe-laying
Assemblies of the:
Lämpöässä T 10-15 Lämpöässä P 10-15
1
4
5
3
2
1. To the boiler (Cu 28mm)
2. From the boiler (Cu 28mm)
3. From the superheater (Cu 15mm)
4. To the superheater (Cu 15mm)
5. Lead-through sensors / electric
1
52
Assemblies of the:
Lämpöässä T 21-31 Lämpöässä P 21-31
1. To the boiler (Cu 28mm)
2. From the boiler (Cu 28mm)
3. To the superheater (Cu 15mm)
4. From the superheater (Cu 15mm)
5. Lead-through sensors / electric
1
5
2
214
5
3

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Ground Source Heat Pumps Since 1983
2.3. Connecting the collector pipe
Assemblies of the:
Lämpöässä T 10-15 Lämpöässä P 10-15
12
Collector pipe assemblies optionally on
both sides. Connect asseblies to the
collector pipe with care.
1. Collector pipe, ow (Cu 28mm)
2. Collector pipe, return (Cu 28mm)
Unused assemblies must be plugged.
12
Assemblies of the:
Lämpöässä T 21-31 Lämpöässä T 21-31
1
2
Collector pipe assemblies on the side.
Connect asseblies to the collector pipe
with care.
1. Collector pipe, ow (1¼” uk)
2. Collector pipe, return (1¼” uk)
1
2
2.4. Filling and de-aeration of the ground loop
Equipment required for the lling and deaeration of the ground loop:
• container, 60 litres
• a submersible pump tted with a lter, lifting height approximately 30 m
• water and ethyl alcohol, or glycol-water mixture (1:1) with a frost resistance of -17 degrees Celsius
• 2 x textile hose 1-2”
• couplings adaptable to lling unit

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Ground Source Heat Pumps Since 1983
THE FILLING AND DE-AERATION PROCESS OF T 10-15 / P 10-15
Please check that the ground loop has been correctly connected (see “Connecting the ground loop” section) and that
the compressor has been preheated (see ”Safety precautions” section).
1. Install lling and de-aeration assemblies to the collector pipe (return) according to the picture beside
2. Attach textile hoses to lling unit
• Attach a textile hose from submercible pump to the lling unit (between brine pump and shut-off valve).
• Attach the textile hose from lling unit (between shut-off valve and collector pipe) to mixing tank.
2
1
3
4
3. Fill the container with a geothermal uid mixture (ethyl alcohol water 1:1 or glycol)
4. Open lling unit valves (nr 2 and 3) and close the shutt-off valve (nr 1)
5. Turn on the submercible pump.
6. Add water and ethyl alcohol mixture to the mixing tank until no more uid can enter the pipes.
7. Use the brine pump of the ground source heat pump to accelerate the circulation.
• Turn the main switch (Q1) and the heating switch (S2) on.
• Turn the switch S4 (Auto - 0 - Maalämpö) to the position 0 (compressor running prevented).
• Check that motor protection switces (QM1, QM2) are on.
• Turn the control current (F3) on. The brine pump starts. Check the rotation direct of the brine pump
by using the switch S2.
Keep the submercible pump running until the uid is clear and no gurgling can be heard from the pipes. Please note!
Deaeration usually takes several hours and helps ensure that all the air is removed from the system and that there are
no malfunctions once the system is started.LEAVE NO PRESSURE IN THE NETWORK!
8. Turn pumps off.
9. Close lling unit valves (nr 2 and 3)
10. Remove textile hoses.
11. Clean the ball valve with integral lter of both collector loops.
12. Open the valve nr 1.
13. Install the expansion tank (nr 4) to the de-aeration assembly (nr 3)
14. Fill the expansion tank with ethyl alcohol m ixture (2/3 capacity)
15. Install the safety valve to the top of the expansion tank
16. Open the de-aeration assembly (nr 3)

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Ground Source Heat Pumps Since 1983
THE FILLING AND DE-AERATION PROCESS OF T 21-31 / P 21-31
Please check that the ground loop has been correctly connected (see “Connecting the ground loop” section) and that
the compressor has been preheated (see ”Safety precautions” section).
1. Install lling and de-aeration assemblies to the collector pipe (return) according to the picture beside
2. Attach textile hoses to lling unit
• Attach a textile hose from submercible pump to the lling unit (nr 2)
• Attach the textile hose from lling unit (nr 3) to the mixing tank.
3. Fill the container with a geothermal uid mixture (ethyl alcohol water 1:1 or glycol)
4. Open lling unit valves (nr 2 and 3) and close the shutt-off valve (nr 1)
5. Turn on the submercible pump.
6. Add water and ethyl alcohol mixture to the mixing tank until no more uid can enter the pipes.
7. Use the brine pump of the ground source heat pump to accelerate the circulation.
• Turn the main switch (Q1) and the heating switch (S2) on.
• Turn the switch S4 (Auto - 0 - Maalämpö) to the position 0 (compressor running prevented).
• Check that motor protection switces (QM1, QM2) are on.
• Turn the control current (F3) on. The brine pump starts. Check the rotation direct of the brine pump by
using the switch S2.
Keep the submercible pump running until the uid is clear and no gurgling can be heard from the pipes. Please note!
Deaeration usually takes several hours and helps ensure that all the air is removed from the system and that there are
no malfunctions once the system is started. LEAVE NO PRESSURE IN THE NETWORK!
8. Turn pumps off.
9. Close lling unit valves (nr 2 and 3)
10. Remove textile hoses.
11. Clean the ball valve with integral lter of both collector loops.
12. Open the valve nr 1.
13. Fill the expansion tank with ethyl alcohol m ixture (2/3 capacity)
14. Install the safety valve to the top of the expansion tank.
Filling and deaeration have now been completed. Install the expansion tank, if the collector pipe is planned to be
pressurized. PLEASE NOTE! Once the heat collecting pipes have been placed in a bore well, we would advise users to
switch the positions of the textile hoses in the group of ll valves during lling and deaeration. This increases the ef-
ciency of the pipes.
2.5. Boiler connection
Connect the boiler to the ground source heat pump accordingly the HWAC drawings (chapter 6). The connection may
vary depend on the boiler type. It is needed to add a trim valve to reduce superheat circuit ow. The factory setting for
trim valve is fully open. Close the valve at rst. Then open the valve to the right position according to the following
table. It is possible to tune the amount of superheat according to the need afterwards.
Heat pump T 10 T 13 T 15 T 21 T 31
Adjustment of trim valve open 1 round open 1 round open 1 round open 2 rounds open 2 rounds
1
3
2
4

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Ground Source Heat Pumps Since 1983
2.6. Heating connection
The heating circuit 1 is the main circuit with higher temperature e.g. heating with radiators. The heating circuit 2 is
the secondary circuit with lower temperature e.g underoor heating.
Pipes in the heating network are connected to the ground source heat pump using either textile hoses (network of
radiators) or using a xed piping network (oor heating network). These connections stop sound from passing into the
pipes. All heating connections (for example, a heating radiator for an air conditioner or a heated towel rail) must be
made to the heat piping. When the network piping on the is in place, lling may commence. The pipes in the network
are lled with water.
Please note! If renovating, ensure that the heat distribution piping has been properly rinsed before connecting the
heat pump.
Filling a heating system tted with a pressure gauge:
• open the ll valve on the heating network
• ll the piping with water
• deaerate the piping through the water tank
• ll and deaerate the network until all the air has been removed and leave the pressure at 1–1.2 bar
• maximum values
• heating network 1,5 bar
• DHW network 9 bar
2.7. Domestic water connection and circulation of water
Complete the piping connections according to the piping connections diagram in section 2.2. The circulation water
pump is installed on the input side of the heat pump. The mixing valve is tted to the hot water pipe in order to prevent
burns.
The overow pipe is joined to the oor drain as instructed or to an overow funnel if the distance to the oor drain is
more than two metres. The overow funnel must be directed down towards the oor drain. The backpressure valve is
tted to the cold water joint on the input side.
2.8. HEPAC check list
Check that
• the connections are tight and there are no leaking valves
• the expansion tank on the heating system and ll side is properly installed
• the overow pipe on the shut-off valve and the pressure gauge on the heating system have been properly installed
• the heating system has been lled and deaerated appropriately
• collector pipes has been installed, lled and deaerated appropriately

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Ground Source Heat Pumps Since 1983
2.9. Electrical installation
Only qualied electricians are permitted to carry out electrical work on the heat pump according to general regulations.
Device T 10 / P 10 T 13 / P 13 T 15 / P 15 T 21 / P 21 T 31 / P 31
Electrical connection 400V 3N~ 400V 3N~ 400V 3N~ 400V 3N~ 400V 3N~
Fuse size (slow) A3 x 16 C 3 x 16 C 3 x 16 C 3 x 25 C 3 x 25 C
The Lämpöässä heat pump is connected to a 400 V (50 Hz). The Lämpöässä heat pump has been tted with an
integrated electrical switchboard to which is permanently powered. A plastic-coated wire is used as a supply line.
This wire travels to the master switch in a casing pipe.
2.9.1. Main switch
The main switch must install before other installations.
2.9.2. Sensors
The master switch must be installed before any other installation takes place. In order for the outdoor sensor to
recognise weather conditions as effectively as possible, it is very important that it be placed in the correct location.
The outdoor sensor should be placed on the north-western or northern side of the building to avoid the effects of
the morning sun. If the sensor cannot be placed as recommended, ensure that it is protected from direct sun light.
The sensor is placed approximately 2/3 of the way up the wall of the building near the corner. A sensor should not be
placed under a roof, in a place protected from the wind or over a vent, doors or windows where the temperature is not
the normal outdoor temperature. In order for the room sensor to detect average indoor temperatures as reliably as
possible, it must be placed in a central and open location, for example a hallway between several rooms or the
staircase. String a bipolar electrical line (at least 0.5 mm2) from the heat pump to the room sensor. Position the room
sensor approximately 2/3 of the way up the wall. Connect the room sensor lead to the heat pump. Please note! Leads
must be correctly connected in order for the heat pump to operate.
In order to obtain the best results, the room sensor and leads can be tested in difrent locations before being per-
manently installed.
Ouman 201 Connection strip Cable type
Outdoor sensor 12 X 0,75 mm2
Room sensor (equipment) 32 X 0,75 mm2
Flow sensor 22 X 0,75 mm2
Hot gas sensor 11 2 X 0,75 mm2
Sensor, lower part 10 2 X 0,75 mm2
Sensor, upper part 92 X 0,75 mm2
Ouman 203 Connection strip Cable type
Outdoor sensor 12 X 0,75 mm2
Flow sensor HC1 22 X 0,75 mm2
Room sensor HC1 (equipment) 32 X 0,75 mm2
Flow sensor HC2 52 X 0,75 mm2
Flow sensor DHW 72 X 0,75 mm2
Sensor, upper part 92 X 0,75 mm2
Sensor, lower part 10 2 X 0,75 mm2
Hot gas sensor 11 2 X 0,75 mm2
Room sensor TMR (equipment): connection from sensor to room space.

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Ground Source Heat Pumps Since 1983
2.9.3. Actuators
Ouman 201 Connection strip Cable type
Mixing valve motor 51, 52, 53 3 X 1,5 mm2
Ouman 203 Connection strip Cable type
Heating Circuit 1 Mixing valve motor 51, 52, 53 3 X 1,5 mm2
Heating Circuit 2 Mixing valve motor 55, 56, 57 3 X 1,5 mm2
DHW Mixing valve motor 59,60,61 3 X 1,5 mm2
2.10. Electricity check list
Check that
• all phases going to the switchboard are in the correct phase sequence
• tension difference between phases is 400V
• the main fuse size is correct
• the fuse size of ground source heat pump is correct (slow)
• as needed, the current control is installed in to the electric control panel
2.11. Operating switches
• Q1 - Main switch
• F3 - Control current
• S1 - Heating on/off
• S2 - Heat distribution pump 1
• S5 - Heat distribution pump 2
• S3 - AUTO - 0 - MAALÄMPÖ
• S4 - Condenser pump and magnetic valve
• QM1 - Compressor
• QM2 - Brine pump
2.12. Before startup
Before startup, check that:
• the heating system has been connected, lled and deaerated appropriately
• the ground loop has been installed, lled and deaerated appropriately
• electrical connections have been made appropriately
• all sensors has been installed
• fuses are in position: on
2.13. Startup
• Turn on the main switch.
• Press down black motor protection switches QM1 and QM2.
• Turn the switch S1 on.
• Turn the AUTO - 0 - MAALÄMPÖ switch to the position MAALÄMPÖ.
• Start the ground source heat pump with the switch F3.
• Check the rotation direction of brine pumps. Check the phase rule in case of the incorrect rotation direction.
The Lämpöässä ground source heat pump starts. If the installation is carried out carefully and in accordance with the
instructions provided the system will work faultlessly from the very beginning.

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Ground Source Heat Pumps Since 1983
Possible problems during startup
Problem Cause Solution
Fuses always blow when the compressor is
being started.
You are using the wrong type of fuse. Check that the fuse is automatic: C or D/
ceramic fuse: SLOW or with a snail icon.
Temporary connections at the site are
causing an overload on the fuses.
Reduce load.
The ground loop pump does not start. The regulator may not be getting any
power.
Check the regulator fuse.
The regulator is not authorised to start the
pump.
Check the measured/set values.
The ground loop pump does not circulate
uid.
The brine pump is rotating in the wrong
direction.
Switch the location of the two phases.
Shut-off valves are in the ll position. Check that the deaeration and ll valves
are in the ‘closed’ position and that the
intermediate valve is open.
The compressor runs for a little while and
the steam pressure switch goes off.
There may still be air in the ground loop. Deaerate the ground loop.
There may be a leak in the refrigerant
loop.
Contact the manufacturer.
The uid level in the ground loop ll
container drops suddenly after startup.
There is a leak in the system (the smell of
ethyl alcohol is strong), there is a leak in
the ground loop or there is still air in the
ground loop.
Check the condition of valves in the
deaeration group on the air lock and the
shaft seal on the ground loop pump and,
if possible, the ground loop extension
joints, or deaerate.
Thermal relays go off when starting. The compressor or the ground loop pump is
short-circuited or one of the phases is not
activated.
Check electrical connections.
Fuses in the master switchboard of the
building are faulty.
Check and replace fuses as required.

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Ground Source Heat Pumps Since 1983
3. USER INFORMATION
3.1. Lämpöässä settings
Information in this section has been compiled from the Lämpöässä 201GT/203GT Manual, which, in addition to the
following, includes more detailed information on the various functions and detailed reading(s).
3.2. Care and maintenance
The Lämpöässä heat pump is an easy-care heating system. It requires no regular maintenance and its simple structure
makes Lämpöässä reliable to use. If the installation is carried out carefully and in accordance with the instructions
provided, there is usually no need for maintenance. The ll container inside the geothermal heat pump should be
checked every couple of weeks during the rst few months and afterwards approximately once a month for the rst year
of use thereafter.
3.3. Troubleshooting
If an alarm sounds, we always recommend that you rst check that the regulator does not have the 5-minute compres-
sor running prevention enabled. The facility can be overridden by turning the master switch to 0 and back.
The geothermal heat pump is controlled according to two measured values: the measured value at the bottom and at
the top of the water tank. A minimum value is determined for each set value in the “Set values” section.
In practice, consumption of hot water also starts the compressor. The lower the minimum set value for the lower part
of the water tank, the more economical the use of the system. However, it is important to note when determining the
set value that values which are too low will reduce the amount of hot water available.
Problem Possible cause Solution
The compressor does not
start
The water tank temperature is adequate and in
accordance with the regulator.
No action required.
The compressor has been stopped for less than 5
minutes.
No action required.
Fuse problem. Check the condition of the fuses in the master
switchboard.
The compressor does not
start and the regulator
display reads: “divergence
alarm reading 4 compres-
sor operation”.
The protection switch for the motor has gone off.
OR
The suction pressure switch on the pressure switch
has gone off.
Press the protection switch for the motor.
OR
Set off the switch.
No text is visible on the
regulator.
The device is not getting any power. Check that the control current and master
switch are on.
A fuse has blown. Replace the fuse.
The display is broken/the circuit board of the regulator
is faulty.
Contact maintenance.

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Ground Source Heat Pumps Since 1983
Thermal relays go off
immediately when power
is switched on.
The protection switch for the motor goes off if the
equipment is short-circuited or one of the phases is
not on.
Contact an electrician.
Fuses in the master switchboard of the building are
faulty.
Check the condition of the fuses and replace
as required.
Regulator display reads:
Enter code
You have attempted to change the settings in main-
tenance mode.
Special settings for maintenance mode are not
required for normal use. Set values for tempe-
ratures can be set in normal mode.
The system does not
produce enough heat
A sudden drop in outdoor temperature may tempo-
rarily cause inadequate heating power in new buil-
dings, because moisture contained in the structure
takes up a lot of heat when it dries.
No action required.
During the rst year, the ground loop may not produ-
ce heat at full power because the earth around the
ground loop pipes has not yet become more solid.
No action required.
The set value and measu-
red value for the regulator
do not match.
A maximum limit has been used for the set values.
A spiking over-voltage caused by a lightning strike
has caused a fault in the condenser, causing the
temperature to drop from the actual values.
The regulator must be replaced (not under
warranty).
The regulator motor has been set on manual and the
regulation does not take place.
In the summer, the temperature in the room where
the heat pump is located may rise to up to 30 de-
grees Celsius. In these cases, the temperature sensor
for the output water is reading the air temperature
instead of the temperature for the output water.
No action required.
The compressor is on all
the time or for long periods
of time.
A lot of heat is needed, for example the outdoor
temperature is very low or the structure is drying
during the rst year’s use of the building.
No action required.
Lack of refrigerant. Can be detected from bubbles in
the liquid container even after some minutes of use.
Contact a refrigeration supplier or maintenance.
The processor/software on the regulator is faulty. Turn off the control current switch for 10
seconds and turn it back on. If turning off the
power does not help, contact maintenance.
If the above instructions do not help, please contact your local Lämpöässä dealer.
PLEASE NOTE! The warranty shall be subject to the existence of an appropriately completed and issued warranty
certicate and a certicate signed by the user stating that the mechanic instructed the user on how to operate the
equipment.

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Ground Source Heat Pumps Since 1983
4. TECHNICAL SPECIFICATIONS
4.1. Chart
Lämpöässä T 10 / P 10 T 13 / P 13 T 15 / P 15 T 21 / P 21 T 31 / P 31
Dimensions
width
depth
height
mm
mm
mm
590
640
1400
780
780
1300
Weight kg 180 200 220 280 318
Electrical connection 400V 3N~
Supplied output 35/50°C * kW 11,4/10,6 14,2/13,1 16,7/15,3 20,6/18,9 31,2/28,9
Supplied input 35/50°C * kW 2,4/3,3 3,0/4,0 3,6/4,6 4,8/5,9 7,4/10,2
Start current A45 55 63 75 110
Fuse size (slow) A3 x 16 C (Slow) 3 x 25 C (Slow) 3 x 35 C (Slow)
Supply cable size * mm25 x 2,5 s 5 x 6 s 5 x 10 s
Compressor Scroll
Refrigerant g1700 2000 2300 3500 3700
Max length of ground loop m1x500 2x500
Current control Accessory
* Ground collector 0°C
4.2. Space requirements
The heat pump requires 50mm more oor space to the side of assemblies than its external dimensions. Lämpöässä
T10-T31 and P10-31 geothermal heat pumps are 1.3-1.4 metres in height. Approximately 0.4 metres of space must
be reserved for the assemblies on top of the heat pump. This should be taken into account when placing the heat pump
in a low room, such as a basement.
The Lämpöässä geothermal heat pump should be installed in a warm, insulated space which has a oor drain, because
some ground loop uid may be splashed on the oor when the ground loop is lled. The chosen area does not need to
be reproof.
mm T10 / P10 T13 / P13 T15 / P15 T21 / P21 T31 / P31
A600 600 600 600 600
B50 50 50 150 150
C50 50 50 50 50
O800 800 800 1100 1500
X3500 3500 3500 3500 3500
Y1500 1500 1500 1750 1750
V400 400 400 400 400
VARAAJA
Y
B
A V
X
C
O
V
A
B
Y
WATER
TANK
C

17
Ground Source Heat Pumps Since 1983
5. WARRANTY
Suomen Lämpöpumpputekniikka Oy offers a two- (2) year warranty with the Lämpöässä T geothermal heat pumps it
manufactures. The manufacturer shall not be responsible for any breakages of equipment which is not installed cor-
rectly, any brekages of equipment which is installed contrary to the instructions provided, or any costs incurred as a
result of these actions.
The warranty shall be subject to the existence of an appropriately completed and issued warranty certicate and a
certicate signed by the user stating that the mechanic instructed the user on how to operate the equipment.
NOTICE! THE WARRANTY OF THE LÄMPÖÄSSÄ T COMPRESSOR IS NOT VALID IF PREHEATING IS NOT CARRIED OUT.
6. APPENDIX
Connection diagram, device T10-31/201 GT
Connection diagram, device T10-31/203 GT
Connection diagram, device P10-31/201 GT
Connection diagram, device P10-31/203 GT
Main circuit T/P 10-15
Control circuit / condensor pump, heat distribution pumps T/P 10-15
Control circuit / compressor. brine pump, immersion T/P 10-15
Main circuit T/P 21-31
Control circuit / condensor pump, heat distribution pumps T/P 21-31
Control circuit / compressor. brine pump, immersion T/P 21-31